libavformat/nutdec.c File Reference

#include "libavutil/avstring.h"
#include "libavutil/bswap.h"
#include "libavutil/dict.h"
#include "libavutil/mathematics.h"
#include "libavutil/tree.h"
#include "avio_internal.h"
#include "nut.h"
#include <assert.h>

Go to the source code of this file.

Defines
#define	NUT_MAX_STREAMS   256
#define	GET_V(dst, check)
Functions
static int	get_str (AVIOContext *bc, char *string, unsigned int maxlen)
static int64_t	get_s (AVIOContext *bc)
static uint64_t	get_fourcc (AVIOContext *bc)
static int	get_packetheader (NUTContext *nut, AVIOContext *bc, int calculate_checksum, uint64_t startcode)
static uint64_t	find_any_startcode (AVIOContext *bc, int64_t pos)
static int64_t	find_startcode (AVIOContext *bc, uint64_t code, int64_t pos)
	Find the given startcode.
static int	nut_probe (AVProbeData *p)
static int	skip_reserved (AVIOContext *bc, int64_t pos)
static int	decode_main_header (NUTContext *nut)
static int	decode_stream_header (NUTContext *nut)
static void	set_disposition_bits (AVFormatContext *avf, char *value, int stream_id)
static int	decode_info_header (NUTContext *nut)
static int	decode_syncpoint (NUTContext *nut, int64_t *ts, int64_t *back_ptr)
static int	find_and_decode_index (NUTContext *nut)
static int	nut_read_header (AVFormatContext *s, AVFormatParameters *ap)
static int	decode_frame_header (NUTContext *nut, int64_t *pts, int *stream_id, uint8_t *header_idx, int frame_code)
static int	decode_frame (NUTContext *nut, AVPacket *pkt, int frame_code)
static int	nut_read_packet (AVFormatContext *s, AVPacket *pkt)
static int64_t	nut_read_timestamp (AVFormatContext *s, int stream_index, int64_t *pos_arg, int64_t pos_limit)
static int	read_seek (AVFormatContext *s, int stream_index, int64_t pts, int flags)
static int	nut_read_close (AVFormatContext *s)

---

Define Documentation

#define GET_V	(	dst,
		check		)

Value:

tmp= ffio_read_varlen(bc);\
    if(!(check)){\
        av_log(s, AV_LOG_ERROR, "Error " #dst " is (%"PRId64")\n", tmp);\
        return -1;\
    }\
    dst= tmp;

Definition at line 168 of file nutdec.c.

Referenced by decode_frame_header(), decode_info_header(), decode_main_header(), decode_stream_header(), and find_and_decode_index().

#define NUT_MAX_STREAMS   256

Definition at line 34 of file nutdec.c.

Referenced by decode_main_header().

---

Function Documentation

static int decode_frame	(	NUTContext *	nut,
		AVPacket *	pkt,
		int	frame_code
	)			[static]

Definition at line 733 of file nutdec.c.

static int decode_frame_header	(	NUTContext *	nut,
		int64_t *	pts,
		int *	stream_id,
		uint8_t *	header_idx,
		int	frame_code
	)			[static]

Definition at line 663 of file nutdec.c.

static int decode_info_header

(

NUTContext *

nut

)

[static]

Definition at line 394 of file nutdec.c.

Referenced by nut_read_header(), and nut_read_packet().

static int decode_main_header

(

NUTContext *

nut

)

[static]

Definition at line 188 of file nutdec.c.

Referenced by nut_read_header().

static int decode_stream_header

(

NUTContext *

nut

)

[static]

Definition at line 296 of file nutdec.c.

Referenced by nut_read_header().

static int decode_syncpoint	(	NUTContext *	nut,
		int64_t *	ts,
		int64_t *	back_ptr
	)			[static]

Definition at line 474 of file nutdec.c.

Referenced by nut_read_packet(), and nut_read_timestamp().

static int find_and_decode_index

(

NUTContext *

nut

)

[static]

Definition at line 502 of file nutdec.c.

Referenced by nut_read_header().

static uint64_t find_any_startcode	(	AVIOContext *	bc,
		int64_t	pos
	)			[static]

Definition at line 116 of file nutdec.c.

Referenced by find_startcode(), nut_read_header(), and nut_read_packet().

static int64_t find_startcode	(	AVIOContext *	bc,
		uint64_t	code,
		int64_t	pos
	)			[static]

Find the given startcode.

Parameters:

	code	the startcode
	pos	the start position of the search, or -1 if the current position

Returns:

the position of the startcode or -1 if not found

Definition at line 145 of file nutdec.c.

Referenced by nut_read_header(), nut_read_timestamp(), and read_seek().

static uint64_t get_fourcc

(

AVIOContext *

bc

)

[static]

Definition at line 62 of file nutdec.c.

Referenced by decode_stream_header().

static int get_packetheader	(	NUTContext *	nut,
		AVIOContext *	bc,
		int	calculate_checksum,
		uint64_t	startcode
	)			[static]

Definition at line 96 of file nutdec.c.

Referenced by decode_info_header(), decode_main_header(), decode_stream_header(), decode_syncpoint(), find_and_decode_index(), and nut_read_packet().

static int64_t get_s

(

AVIOContext *

bc

)

[static]

Definition at line 55 of file nutdec.c.

Referenced by decode_frame_header(), decode_info_header(), and decode_main_header().

static int get_str	(	AVIOContext *	bc,
		char *	string,
		unsigned int	maxlen
	)			[static]

Definition at line 36 of file nutdec.c.

Referenced by decode_info_header().

static int nut_probe

(

AVProbeData *

p

)

[static]

Definition at line 156 of file nutdec.c.

static int nut_read_close

(

AVFormatContext *

s

)

[static]

Definition at line 910 of file nutdec.c.

static int nut_read_header	(	AVFormatContext *	s,
		AVFormatParameters *	ap
	)			[static]

Definition at line 599 of file nutdec.c.

static int nut_read_packet	(	AVFormatContext *	s,
		AVPacket *	pkt
	)			[static]

Definition at line 773 of file nutdec.c.

static int64_t nut_read_timestamp	(	AVFormatContext *	s,
		int	stream_index,
		int64_t *	pos_arg,
		int64_t	pos_limit
	)			[static]

Definition at line 830 of file nutdec.c.

Referenced by read_seek().

static int read_seek	(	AVFormatContext *	s,
		int	stream_index,
		int64_t	pts,
		int	flags
	)			[static]

Definition at line 855 of file nutdec.c.

static void set_disposition_bits	(	AVFormatContext *	avf,
		char *	value,
		int	stream_id
	)			[static]

Definition at line 381 of file nutdec.c.

Referenced by decode_info_header().

static int skip_reserved	(	AVIOContext *	bc,
		int64_t	pos
	)			[static]

Definition at line 176 of file nutdec.c.

Referenced by decode_info_header(), decode_main_header(), decode_stream_header(), decode_syncpoint(), and find_and_decode_index().